I know that with the sims 4 seasons you're supposed to be able to give gifts from the friendly menu. I have seasons and that option is not showing my sim is in the gardening/flower arrangement career ...
I have had what I thought was a problem with this, but some arrangements, are not friendly. Some are under romantic, some are mean some are bro gifts. Carl's Guide will point you the right way. Like you can gift an arrangement that will make both sims flirty, and that is under romance, there is one full of bees, and it will be in mean gifts.